I had a 2080 before and I was getting around 70-80 fps on battlefield 1 on ultra settings and then I got a 3080 Ti but there was no noticeable improvement
my gpu temps are 40-50 degrees during idling and 60-70 degrees under load. My pci bus is x16 gen3. I just feel like my motherboard and cpu are 7 years older than my gpu so there may be an issue with throttling.